Ternary Zero Correlation Zone Sequence Sets for Asynchronous DS-CDMA

Benattou Fassi¹, Ali Djebbari¹, Abdelmalik Taleb-Ahmed²

¹Telecommunications and Digital Signal Processing Laboratory, Djillali Liabes University of Sidi Bel Abbes, Sidi Bel Abbes, Algeria.
²LAMIH UMR CNRS 8530, University of Valenciennes and Hainaut-Cambresis (UVHC), le Mont Houy,France.

DOI: 10.4236/cn.2014.64023                

Abstract

In this paper we propose a new class of ternary Zero Correlation Zone (ZCZ) sequence sets based on binary ZCZ sequence sets construction. It is shown that the proposed ternary ZCZ sequence sets can reach the upper bound on the ZCZ sequences. The performance of the proposed sequences set in asynchronous Direct Sequence-Code Division Multiple Access (DS-CDMA) system is evaluated. In the simulation we used two types of channels: Additive White Gaussian Noise (AWGN) and frequency non-selective fading with AWGN noise. The proposed ternary ZCZ sequence sets show better results, in term of Bit Error Rate (BER), than Hayashi’s ternary ZCZ sequence sets.

Keywords

Hadamard Matrix, Zero Correlation Zone Sequences, Correlation, Asynchronous DS-CDMA, BER

Conflicts of Interest

The authors declare no conflicts of interest.

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